Movable door strip



.june 4, 1929. H. H, WOODHAM 1,716,097

v MOVABLE DooR STRIP Filed May 31, 1928 w lnkm Mw f lll'. i l Illini.' L92 16 ggg' 11212522 ECE 2; l *Y 'l 4 Patented `lune 4, 1929.

UNITED STATES PATET IARLOW H. WOODHAM, 0F SANTA MONICA, CALIFORNIA, ASSIGNR ONE-HALF TO ALICE E. WOODHAM, 0F LOS ANGELES, CALIFORNIA.

MovABLE Doon. STRIP.

Application mea May 31,

This invention relatesV to closures, and more especially to a strip for automatically closing the space between a closure and its casing.

An object -of my invention is the provision of a device adapted to be interposed between a closure and its casing, to prevent the passage of air currents therebetween.

Another object is the provision of a device of the character described, useful in sealing a room against the passage of gas or dust-laden currents thereto or therefrom.

One of the specific objects of the invention is to provide a Sealing strip automatically operable by the ldoor in closing, to stop the space between the door and its casing.

A further object is the provision of a sealing strip of the general character described, which is adapted to be concealed from view within a groove in that edge of the closure adjacent which it is to be mounted.

The invention possesses other objects and features of advantage, some of which, with the foregoing, will be set forth in the following description of the preferred form of the invention which is illustrated in the drawings accompanying and forming part of the specification. It is to be understood that I do not limit myself to the showing made by the said drawings and description, as I may adoptvariations of the preferred form within the scope of my invention as set forth in the claim.

Referring to the drawings:

Figure 1 is an Velevation of the lower portion of a door and its associated casing, portions of which are broken away to disclose the operative parts of my automatic sealing strip, which are Ishown in the position occupied thereby when the door is closed and the sealing strip is extended to sealing position.

Fig. 2 is a vertical sectional view, the plane of section being indicated by the line 2 2 of Fig. l.

Fig. 3 is an elevation of the door' of Fig. l, with a portion thereof broken away to disclose the operative parts of my sealing strip in the position assumed thereby when the door is opened and the sealing strip moved away from sealing position. y

Fig. 4 is a vertical sectional view, the plane of section being indicated by the line l1*4 of Fig. 3.

Fig. 5 is an elevation of the other side of 1928. Serial N0. 281,910.

Fig. 8 is a perspective view of a portiony of the driving strip.

Broadly, the device of my invention comprises a device for closing the space between a door and itsV casing. The device is adapted to be so mounted adjacent the edge of the door that it is automaticall moved by the door in closing, to an exten ed posi'- tion wherein it effectually closes whatever space may be left between the edge of the door and the casing. Means are provided for retracting the strip when the door is pened, to permit free vmovement of the I am aware that my invention is adaptable to a vvariety of Vclosures and for a variety of purposes. For example, it may be used in conjunction with a door, window or lid of either the swinging or sliding type. The invention may be used to prevent drafts, to prevent rain from flowing between a closure and its casing, or to seal off a room or compartment to prevent the lowof gas or dust into or out of the room past its tive parts of my improved sealing device are `9 receivable within the groove 6 or upon the bottom edge 7 of the door, with the result that the entire device is concealed from view and detracts in no manner from the normal appearance of the door.

An anchoring plate'll is provided as a support for the other portions of the device. The anchoring plate 11 corresponds substantially in length to the length of ythat edge of the door to which the sealing device is to be applied, inthe present instance, to the length of the lower edge 7 or width of the door 8. Means for attaching the anchoring plate in position are provided in the form of a ange 12 extending laterally ioo from the bottom edge of the plate 11 and adapted to extend under a portion of the lower edge 7 of the door, as clearly shown in Figs. 2 and 4.

Any suitable fastening means such as screws 13 may be extended through apertures 14 in the flange 12 to attach the anchoring plate 11 in position. A vertical plate 16 is carried at each end of the anchoring plate 11 to close the associated end of the groove 6; and screws 17 or their equivalent may be driven through apertures 18 in the plates 16 into the door 8, to securely hold them in position.

A plurality of slots 19 extend longitudinally of the anchoring plate 11 preferably adjacent the upper edge thereof; and a plurality of transversely extending slots 21 are also provided in the anchoring plate 11.

A sealing strip 22 is slidably mounted upon the anchoring plate 11, and preferably corresponds theretoV in length. InV its preferred form, Vthe sealing strip 22 comprises a rigid back 23 with a liexible apron 24 de-v pending therefrom. Thisapron 24 may be made o-f felt, rubber or any other suitable material adapted to engage the silll 26 or adjacent part of the casing 27 for .the door 8, and establish a substantially drafttight seal therewith. The movement of the sealing strip 22 in respect to the anchoring plate 11 is limited to movement transversely of the anchoring plate 11; or, since in the .present 'instance the anchoring plate. is posi tioned to extend along the bottom edge of the door, the movement of the sealing strip is limited to Avertical movement. This is effected by means of a pin 28 extending through each of the vertical slots 21 in the anchoring plate 11 and rigidly attached to the sealing strip 22.

A driving strip 31 is slidably mounted upon the anchoring plate 11 and preferably upon the side thereof oppositelthe' sea-ling strip 22. This driving strip is limited to movement longitudinally of the anchoring plate 11; or, in other words, to horizontal movement, by means of a pin 32 slidable in each of the longitudinally extending grooves 19 and rigidly secured to the driving strip 31. A head 33 is provided on that end of each of the pins 32 on the opposite side of the anchoring plate 11 from the driving strip 31, with the result that they serve to hold the driving strip closely adjacent the anchoring plate 11, aswell as to limit the movement thereof to horizontal movement. An oblique slot 36 is provided in the driving strip 31 in register with each of the vertical slots 21 in the anchoring plate 11. Accordingly, the pins 28 which extend from the sealing strip 22 through the slots 21, may also extend through the inclined slots 36 in the driving' strip 31. A head 37 is provided L en that end of each of the pins 28 upon the opposite side of the driving strip 81 from the anchoring plate 11 and sealing' strip 22, with the result that the pins 28 serve also to retain lthe sealing strip 22 closely adja cent the anchoring plate 11.

he inclined slots 36 slope downwards toward that edge of the door 8 upon which the hinges 39 are secured; and as a result of the engagement of the pins 28 therein, when the driving strip 81 is moved away from the hinged edge 38, the pins 28 will be forced vertically downwards within the slots 21, carrying with them the sealing strip 22.

Means are provided for moving'the driving strip 81 away from the hinged edge 38 automatically when the door 8 is moved vto closing position. A lug 41 is rigidlyaflixed to the driving strip 81 adjacent the hinged edge 88 of the door, to provide an enlarged shoulder42 in register with an aperture 43 in the adjacent groove closingplate 16. A plate 46 is positioned to that portionl 47 of the casing 27 adjacent the hinged edge 88 of the door 8; and a pin 48 threaded thereto in register with the aperture 48 in the plate 16. A lock nut 49 is threaded upon the pin 48, preferably upon the inside yof the plate 46.

The proportionate size and arrangement of the parts is such that as the door 8 moves to closing position, the pin 48 is projected through the aperture 43 to engage the shoulder 42 upon the lug 41 and push the driving strip 81 longitudinally of the an'- choring plate 11 away from the hinged edge 88, resulting in the lowering of the sealing strip 22 as previously described. A spring 51 is under tension between a pin 52 rigid with the anchoring plate, and a pin 53 rigid with the driving rstrip 31, so that as the door 8 moves away from closing position with the subsequent withdrawal of the pin 48 from engagement with the lug 41,'the spring y51 returns the driving strip. 31 to normal position, and with it, reti-acts the sealing strip. y y

Thus it may be seen that I have'provided an eficiently operating `device for. closing the space between a closure and its casing, which is adapted to be automatically moved to sealing position by the closure in closing, and which is adapted to' be automaticallyra tracted as the door opens, to permit freedom of movement of the door.

Proper engagement of the sealing .strip 22 with the sill26 orother associated port-ion of the casing 27 may be effected by adjust ing the pin 48 within its supporting plate 46; it being understood that the 'farther the pin 48 projects from its associated portion of the casing 27, the lower the sealing strip 22 will be forced when the door 8 closes.

I claim: Y

A device` for closing the space between a closure and its casing, comprising an anchoring plate receivable Within a groove in an edge of said closure, a flange extending from the outer edge of said plate and securable to said grooved edge ot the closure to rigidly dispose the anchoring plate Within the groove and spaced from both sides thereof, a sealing strip slidabletransversely of said anchoring plate upon one side thereof, a driving strip slidable longitudinally of said anchoring plate upon the other side thereof, a pin rigid with said sealing strip and extending through a transverse slot in longitudinal slot in the anchoring plate, said pin having a head bearing against the opposite side olf the plate from the driving strip, and means operable by the door in closing for moving said driving strip longitudinally.

In testimony whereof I have signed my naine to this speciiication.

H. H. WOODHAM. 

